ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor2321401542 <...> Warning: Permanently added '10.128.1.31' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor2321401542", ["ci2-android-6-1/syz-executor2321401542"], 0x7fff782b5610 /* 10 vars */) = 0 brk(NULL) = 0x5555896d2000 brk(0x5555896d2e00) = 0x5555896d2e00 arch_prctl(ARCH_SET_FS, 0x5555896d2480) = 0 set_tid_address(0x5555896d2750) = 305 set_robust_list(0x5555896d2760, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-1/syz-executor2321401542", 4096) = 44 getrandom("\x8a\x5f\x4e\xd5\x82\x82\xbd\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555896d2e00 brk(0x5555896f3e00) = 0x5555896f3e00 brk(0x5555896f4000) = 0x5555896f4000 mprotect(0x7f4cb6be1000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f4cb6b3b800, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4cb6b3f5b0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f4cb6b3b800, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4cb6b3f5b0}, NULL, 8) = 0 getrandom("\x83\xa3\x2b\x4d\x7a\x55\x84\x70", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.X3Qhrs", 0700) = 0 chmod("./syzkaller.X3Qhrs", 0777) = 0 chdir("./syzkaller.X3Qhrs") = 0 write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 executing program mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4cae733000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144 munmap(0x7f4cae733000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 24.102424][ T28] audit: type=1400 audit(1785660726.409:64): avc: denied { execmem } for pid=305 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.122319][ T28] audit: type=1400 audit(1785660726.429:65): avc: denied { read write } for pid=305 comm="syz-executor232" name="loop0" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 24.122948][ T305] loop0: detected capacity change from 0 to 512 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file2", 0777) = 0 [ 24.146919][ T28] audit: type=1400 audit(1785660726.429:66): avc: denied { open } for pid=305 comm="syz-executor232" path="/dev/loop0" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 24.160120][ T305] EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! mount("/dev/loop0", "./file2", "ext4", MS_NODEV|MS_NOATIME, "max_batch_time=0x0000000000000004,max_batch_time=0x0000000000000002,resuid=0x0000000000000000,block_"...) = 0 openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3 chdir("./file2") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 chdir("./file0") = 0 quotactl(QCMD(Q_QUOTAON, GRPQUOTA), "/dev/loop0", 0 /* QFMT_??? */, NULL) = -1 EFAULT (Bad address) mprotect(0x200000000000, 12288, PROT_READ) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x200000000180} --- openat(-1, "/dev/loop0", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 lstat("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", NULL) = -1 ENOENT (No such file or directory) mmap(0x200000000000, 40960, PROT_WRITE|PROT_SEM|PROT_GROWSDOWN, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_32BIT|MAP_GROWSDOWN|MAP_LOCKED|MAP_SYNC|1< [ 24.385110][ T305] __dump_stack+0x21/0x24 [ 24.446719][ T305] dump_stack_lvl+0x110/0x170 [ 24.451384][ T305] ? __cfi_dump_stack_lvl+0x8/0x8 [ 24.456417][ T305] ? ext4_convert_inline_data_nolock+0x30e/0x9e0 [ 24.462728][ T305] print_address_description+0x71/0x200 [ 24.468258][ T305] print_report+0x4a/0x60 [ 24.472569][ T305] kasan_report+0x122/0x150 [ 24.477056][ T305] ? ext4_convert_inline_data_nolock+0x30e/0x9e0 [ 24.483365][ T305] kasan_check_range+0x249/0x2a0 [ 24.488288][ T305] ? ext4_convert_inline_data_nolock+0x30e/0x9e0 [ 24.494601][ T305] memcpy+0x2d/0x70 [ 24.498404][ T305] ext4_convert_inline_data_nolock+0x30e/0x9e0 [ 24.504633][ T305] ? ext4_add_dirent_to_inline+0x440/0x440 [ 24.510437][ T305] ext4_try_add_inline_entry+0x732/0xa60 [ 24.516054][ T305] ? __cfi_ext4_try_add_inline_entry+0x10/0x10 [ 24.522196][ T305] ext4_add_entry+0x509/0xda0 [ 24.526867][ T305] ? ext4_inc_count+0x1b0/0x1b0 [ 24.531730][ T305] ? __ext4_mark_inode_dirty+0x409/0x5d0 [ 24.537369][ T305] ext4_mkdir+0x520/0xc90 [ 24.541695][ T305] ? __cfi_ext4_mkdir+0x10/0x10 [ 24.546569][ T305] ? selinux_inode_mkdir+0x22/0x30 [ 24.551690][ T305] ? security_inode_mkdir+0xd2/0x120 [ 24.557002][ T305] vfs_mkdir+0x39c/0x580 [ 24.561251][ T305] do_mkdirat+0x174/0x4d0 [ 24.565585][ T305] __x64_sys_mkdir+0x6e/0x80 [ 24.570182][ T305] x64_sys_call+0x966/0x9a0 [ 24.574662][ T305] do_syscall_64+0x4c/0xa0 [ 24.579059][ T305] ? clear_bhb_loop+0x30/0x80 [ 24.583713][ T305] ? clear_bhb_loop+0x30/0x80 [ 24.588396][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.594448][ T305] RIP: 0033:0x7f4cb6b576f7 [ 24.598851][ T305] Code: 1f 40 00 48 83 ec 10 48 63 ff 45 31 c9 45 31 c0 6a 03 31 c9 31 d2 31 f6 e8 c6 25 01 00 48 83 c4 18 c3 90 b8 53 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 24.618436][ T305] RSP: 002b:00007ffe589fecf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 24.626839][ T305] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4cb6b576f7 [ 24.634790][ T305] RDX: 000000000399446c RSI: 00000000000001ff RDI: 0000200000000080 [ 24.642745][ T305] RBP: 0000200000000140 R08: 0000000000000001 R09: 0000000000000000 [ 24.650720][ T305] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000080 [ 24.659043][ T305] R13: 00007ffe589fed90 R14: 0000000000000000 R15: 0000000000000000 [ 24.667007][ T305] [ 24.670008][ T305] [ 24.672398][ T305] Allocated by task 102: [ 24.676620][ T305] kasan_set_track+0x4b/0x70 [ 24.681558][ T305] kasan_save_alloc_info+0x1f/0x30 [ 24.686648][ T305] __kasan_slab_alloc+0x72/0x80 [ 24.691479][ T305] slab_post_alloc_hook+0x4f/0x2d0 [ 24.696603][ T305] kmem_cache_alloc+0x166/0x320 [ 24.701448][ T305] vm_area_alloc+0x24/0x1a0 [ 24.705960][ T305] mmap_region+0xfab/0x2130 [ 24.710447][ T305] do_mmap+0x858/0xdd0 [ 24.714496][ T305] vm_mmap_pgoff+0x206/0x3f0 [ 24.719065][ T305] ksys_mmap_pgoff+0x161/0x1d0 [ 24.723807][ T305] __x64_sys_mmap+0xfa/0x110 [ 24.728382][ T305] x64_sys_call+0x8fd/0x9a0 [ 24.732890][ T305] do_syscall_64+0x4c/0xa0 [ 24.737284][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.743174][ T305] [ 24.745475][ T305] Freed by task 102: [ 24.749357][ T305] kasan_set_track+0x4b/0x70 [ 24.753929][ T305] kasan_save_free_info+0x2b/0x40 [ 24.758943][ T305] ____kasan_slab_free+0x132/0x180 [ 24.764067][ T305] __kasan_slab_free+0x11/0x20 [ 24.768808][ T305] slab_free_freelist_hook+0xc2/0x190 [ 24.774169][ T305] kmem_cache_free+0x12d/0x300 [ 24.778911][ T305] __vm_area_free+0x7e/0x130 [ 24.783476][ T305] exit_mmap+0x5e2/0xc10 [ 24.787692][ T305] __mmput+0x92/0x340 [ 24.791652][ T305] mmput+0x4b/0x150 [ 24.795457][ T305] do_exit+0xa51/0x2850 [ 24.799590][ T305] do_group_exit+0x21b/0x2e0 [ 24.804155][ T305] __x64_sys_exit_group+0x3f/0x40 [ 24.809158][ T305] x64_sys_call+0x7b4/0x9a0 [ 24.813635][ T305] do_syscall_64+0x4c/0xa0 [ 24.818027][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.823903][ T305] [ 24.826202][ T305] The buggy address belongs to the object at ffff888110593c60 [ 24.826202][ T305] which belongs to the cache vm_area_struct of size 200 [ 24.840488][ T305] The buggy address is located 32 bytes inside of [ 24.840488][ T305] 200-byte region [ffff888110593c60, ffff888110593d28) [ 24.853654][ T305] [ 24.855955][ T305] The buggy address belongs to the physical page: [ 24.862346][ T305] page:ffffea00044164c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888110593d68 pfn:0x110593 [ 24.873927][ T305] flags: 0x4000000000000200(slab|zone=1) [ 24.879646][ T305] raw: 4000000000000200 ffffea0004416880 dead000000000004 ffff8881001ea900 [ 24.888248][ T305] raw: ffff888110593d68 00000000800f0008 00000001ffffffff 0000000000000000 [ 24.896812][ T305] page dumped because: kasan: bad access detected [ 24.903267][ T305] page_owner tracks the page as allocated [ 24.908989][ T305] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 102, tgid 102 (udevd), ts 4075280897, free_ts 4070138087 [ 24.926340][ T305] post_alloc_hook+0x1f5/0x210 [ 24.931095][ T305] prep_new_page+0x1c/0x110 [ 24.935577][ T305] get_page_from_freelist+0x2ca9/0x2d20 [ 24.941285][ T305] __alloc_pages+0x1fa/0x610 [ 24.945870][ T305] alloc_slab_page+0x6e/0xf0 [ 24.950444][ T305] new_slab+0x98/0x3e0 [ 24.954511][ T305] ___slab_alloc+0x70f/0xb70 [ 24.959080][ T305] __slab_alloc+0x5e/0xa0 [ 24.963417][ T305] kmem_cache_alloc+0x1a8/0x320 [ 24.968248][ T305] vm_area_alloc+0x24/0x1a0 [ 24.972732][ T305] mmap_region+0xfab/0x2130 [ 24.977215][ T305] do_mmap+0x858/0xdd0 [ 24.981267][ T305] vm_mmap_pgoff+0x206/0x3f0 [ 24.985835][ T305] ksys_mmap_pgoff+0x161/0x1d0 [ 24.990582][ T305] __x64_sys_mmap+0xfa/0x110 [ 24.995157][ T305] x64_sys_call+0x8fd/0x9a0 [ 24.999636][ T305] page last free stack trace: [ 25.004283][ T305] free_unref_page_prepare+0x80c/0x820 [ 25.009719][ T305] free_unref_page_list+0x117/0x8d0 [ 25.014892][ T305] release_pages+0xc7e/0xce0 [ 25.019460][ T305] free_pages_and_swap_cache+0x86/0xa0 [ 25.024900][ T305] tlb_finish_mmu+0x1b2/0x380 [ 25.029561][ T305] exit_mmap+0x41d/0xc10 [ 25.033795][ T305] __mmput+0x92/0x340 [ 25.037772][ T305] mmput+0x4b/0x150 [ 25.041568][ T305] exec_mmap+0x3de/0x460 [ 25.045793][ T305] begin_new_exec+0x1150/0x1cb0 [ 25.050624][ T305] load_elf_binary+0x9e7/0x2820 [ 25.055460][ T305] bprm_execve+0x782/0x1390 [ 25.059937][ T305] do_execveat_common+0x8e3/0xaa0 [ 25.064937][ T305] __x64_sys_execve+0x92/0xb0 [ 25.069604][ T305] x64_sys_call+0x98/0x9a0 [ 25.074030][ T305] do_syscall_64+0x4c/0xa0 [ 25.078430][ T305] [ 25.080732][ T305] Memory state around the buggy address: [ 25.086336][ T305] ffff888110593b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.094386][ T305] ffff888110593c00: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb [ 25.102439][ T305] >ffff888110593c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.110579][ T305] ^ [ 25.114643][ T305] ffff888110593d00: fb fb fb fb fb fc fc fc fc fc fc fc fc fb fb fb [ 25.122687][ T305] ffff888110593d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.130721][ T305] ================================================================== [ 25.139716][ T305] Disabling lock debugging due to kernel taint mkdir(0x200000000080, 0777) = -1 EUCLEAN (Structure needs cleaning) --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- exit_group(0) = ? +++ exited with 0 +++ [ 25.145917][ T305] EXT4-fs error (device loop0): ext4_check_all_de:666: inode #12: block 7: comm syz-executor232: bad entry i